CAJ | 학술논문

比较研究了船舶螺旋桨最高空泡起始航速的叶剖面优化设计方法.优化设计方法由剖面参数表达、空泡斗预报和最佳空泡起始性能遗传算法翼型优化三部分组成.Eppler方法采用10个参数表达任一翼型,已被有效应用到最高起始航速的螺旋桨叶剖面优化设计中.除了Eppler方法中的设计参数,剖面参数表达也可采用B样条曲线的控制点参数实现.对上述两种剖面参数表达方法进行了叶剖面优化设计比较研究,得到了一些结论.
비교연구료선박라선장최고공포기시항속적협부면우화설계방법.우화설계방법유부면삼수표체、공포두예보화최가공포기시성능유전산법익형우화삼부분조성.Eppler방법채용10개삼수표체임일익형,이피유효응용도최고기시항속적라선장협부면우화설계중.제료Eppler방법중적설계삼수,부면삼수표체야가채용B양조곡선적공제점삼수실현.대상술량충부면삼수표체방법진행료협부면우화설계비교연구,득도료일사결론.
A method of blade section design optimization for marine propellers with maximum cavitation inception speed is comparatively investigated.The design optimization method consists of three parts:parametric representation of sections,cavitation bucket prediction and Genetic Algorithm (GA)used to search the optimized foils providing excellent cavitation inception performance.The Eppler method,which describes a profile by ten parameters,was effectively utilized for propeller blade section design optimization for maximum inception speed.Besides design parameters in Eppler method,parametric representation of sections can be also realized by control points of B-spline curve.A comparative investigation of blade section design optimization on these two parametric representations is presented,some conclusions are drawn.